One of the most popular tropical, freshwater fish is the guppy. As well as being easy to keep and tolerant of a wide range of water conditions, guppies are one of the easiest aquarium fish to breed. They are livebearers and bear small, live fry. Unlike many other fish species it is easy to see if you have male or female guppies as the males are highly colored with fancy tails. the females are much duller.
In this article we will explain how to breed guppies successfully. As one male can fertilise many females, who can produce more than one batch of offspring from each insemination, it is not necessary to have even numbers of each sex. See The Tropical Freshwater Aquarium – How to Breed Guppies for more information.